Comparison of adsorptions of phenol,p-nitrophenol and 1-butanol on the activated carbon

محورهای موضوعی : Journal of Physical & Theoretical Chemistry

Gholam-Hossein Naficy ¹ , Seyed, Saeed Reza Emamian ²

1 - Not-mentioned
2 - No-mentioned

تاریخ دریافت : 1394/02/13 تاریخ پذیرش : 1394/02/13 تاریخ انتشار : 1385/01/12

کلید واژه: Activated Carbon, Adsorption, 1-butanol, Phenol, p-nitrophenol&#x0D, &#x0D, isotherms - vi,

چکیده مقاله :

Adsorption of 1-Butanol, Phenol, and P-nitrophenol on activated carbon havebeen studied. The results were used to testifying the validity of different modelsbased on thermodynamic principles: Freundlich, Langmuir and Henry isotherms.The maximum capacity of adsorbent for three compounds was determined, Theconstants of equilibrium were determined by Freundlich isotherm and virialisotherm expression for phenol and 1-butanol, respectively. The thermodynamicfunctions: AG',AS',AH° , were calculated from the data of adsorption of phenol onactivated carbon as a function of temperature. In addition, adsorption of mixturesof phenol and p-nitrophenol under limited range of concentration were studied.Finally arrangement of carbon atoms in activated carbon and surface coverage ofactivated carbon by phenol and 1-butanol for different configurations ofcompounds has been discussed.